A fast downward laser sweep with a short noise crack, the kind you hear when a spaceship fires or a robot says no. Under a second, so you can fire it dozens of times without the game turning into a drone.
square wave sweeping 2200 Hz -> 220 Hz over 120 ms noise crack 8 ms, band-pass 4 kHz, at the start low-pass 3.5 kHz to keep it from getting shrill envelope: 1 ms attack, 160 ms decay